Daikin RYN60E3V1B [40/300] Fan speed control for indoor units

Daikin RYN60E3V1B [40/300] Fan speed control for indoor units
SiBE04-705 Main Functions
Function and Control 29
1.3 Fan Speed Control for Indoor Units
Control Mode The airflow rate can be automatically controlled depending on the difference between the set
temperature and the room temperature. This is done through rotation speed control and Hall IC
control.
For more information about Hall IC, refer to the troubleshooting for fan motor on page 121.
Fan Steps Fan speed control contains 9 steps: LLL, LL, SL, L, ML, M, MH, H and HH.
In automatic operation, the step “SL” is not available.
= Within this range the airflow rate is automatically controlled when the FAN setting
button is set to automatic.
Note: 1. During powerful operation, fan operates H tap + 50 - 90 rpm.
2. Fan stops during defrost operation.
3. In time of thermostat OFF, the fan rotates at the following speed,
Cooling : The fan keeps rotating at the set tap.
Heating : FTK(X)S50D : The fan rotates at LLL tap.
FTK(X)S50-71F : The fan stops.
Automatic Air
Flow Control for
Heating
On heating mode, the indoor fan speed will be regulated according to the indoor heat exchanger
temperature and the difference between the room temperature and the required set point.
Automatic Air
Flow Control for
Cooling
The following drawing explains the principle of fan speed control for cooling:
Step Cooling Heating
LLL
LL
L
ML
M
MH
H
HH (Powerful)
(R2818)
(R5225)
+1.5˚C
+0.5˚C
+2˚C
+1˚C
M
ML
L
fan speed
Difference between room
and set temperature
Rotation speed control
Thermostat
setting
temperature
(R5208)

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